sincasero Share definition Flag Spanglish for "a homeless person" We saw muchos sincaseros on the streets of Tijuana. We couldn't wait to cross back into San Diego. Hay! Dios mio! Que lastima! sincasero by Denver EdmondsDe October 10, 2017 0 0 Get merch Get the sincasero mug. Buy Now — $32.95 See more merch